Ch. 14

Question 1

What % of blood is made of RBC?

Answer 1

45%

Question 2

What are the formed elements?

Answer 2

RBC, WBC, platelets

Question 3

In addition to other factors, ___ has an influence on determining blood volume.

Answer 3

% body fat

Question 4

What type of formed element is most abundnat?

Answer 4

RBC

Question 5

What type of blood cell is ciconcave and lacks a nucleus when they are mature?

Answer 5

RBC

Question 6

Which cell type is an agranulocyte?

Answer 6

monocyte, lymphocyte

Question 7

What describes platelets

Answer 7

fragments of cells

Question 8

What is the primary function of lymphocytes?

Answer 8

protect against foreign substances

Question 9

In the absence of ___, vitami B12 is poorly absorbed.

Answer 9

intrinsic factor

Question 10

Biliverdin and bilirubin are pigments that result from the breakdown of what?

Answer 10

hemoglobin

Question 11

Order of the breakdown products of hemoglobin

Answer 11

biliverdin, bilirubin

Question 12

Iron is a component of what?

Answer 12

hemoglobin

Question 13

Which of the formed elements releases serotonin?

Answer 13

platelets

Question 14

Which WBC funtion as a phagocyte?

Answer 14

neutrophils, monocytes

Question 15

How does heparin prevent the clotting of blood?

Answer 15

stops formation of pT activator and action of thrombin on fibrinogen

Question 16

Cyanosis occurs when

Answer 16

increased amount of reduced hemoglobin (deoxyhemoglobin)

Question 17

Underlying cause of sickle cell disease

Answer 17

genetic mutation

Question 18

What form of anemia is caused by destruction of bone marrow?

Answer 18

aplastic

Question 19

What type of WBC is important in immunity?

Answer 19

lymphocyte

Question 20

Diapedesis

Answer 20

Movement of WBC through walls of capillaries

Question 21

Following an injury, what stimulates the blood vessels in the area to spasm

Answer 21

serotonin released by platelets

Question 22

The hormone ___ controls RBC production via a ___ feedback mechanism

Answer 22

EPO ; negative

Question 23

Creatinine is an example of what type of plasma component?

Answer 23

nonprotein nitrogenous substance

Question 24

Plasma electrolytes include:?

Answer 24

Na, K, chloride, bicarbonate

Question 25

Difference between serum and plasma?

Answer 25

serum does not include fibrinogen

Question 26

Thrombus definition

Answer 26

abnormal formed blood clot

Question 27

Prothrombin time blood test is used to evaluate which clotting mechanism?

Answer 27

extrinsic

Question 28

Thrombocytopenis is a

Answer 28

deficienfcy of platelets

Question 29

Whey type of antigens are found on the surface of RBC of a person with type AB blood?

Answer 29

A and B

Question 30

What determines an individual's blood type?

Answer 30

presence of antigens or markers on RBC

Question 31

in what situation might erythroblastosis fetalis occur?

Answer 31

cecond rH + fetus growing in rH - woman

Question 32

What is true about a person who is Rh -?

Answer 32

plasma lacks Rh antigens

Question 33

What are universal precaustions?

Answer 33

hand washing, assuming everyone is contagious

Question 34

Describe leukemis?

Answer 34

cancer of WBC, too many immuture WBC

Question 35

What is the main function of plasma albumin

Answer 35

maintain osmotic pressure

Question 36

Least abundant leukocyte in blood sample?

Answer 36

bassophil

Question 37

What element is part of a hemoglobin molecule?

Answer 37

iron

Question 38

What are 2 substances that function to dissolve blood clots?

Answer 38

TPA and streptokinase

Question 39

Cyanosis is caused by an increased blood concentration of?

Answer 39

EPO

Question 40

Platelets are cell fragments that are released by what type of cell?

Answer 40

megakaryocytes

Question 41

If blood is too viscous, what happens to blood flow?

Answer 41

decreased rate, Sluggish

Question 42

Normal pH of blood?

Answer 42

7/3 - 7.5

Question 43

What is normal hematocrit?

Answer 43

45%T

Question 44

ypically, calues such as hematocrit, RBC count and hemoglobin concentration are higher in ____?

Answer 44

men than womenWhat is hemat

Question 45

What is hematocrit?

Answer 45

% RBC in blood

Question 46

What is normal white blood count?

Answer 46

4500 per Ml

Question 47

What is the correct sequence for differentiation of RBC?

Answer 47

hemocytoblast, myleoid stem cell, erythroblast, reticulocyte, erythrocyte

Question 48

What is hemolytic anemia?

Answer 48

decreased RBC due to destruction

Question 49

What is pernicious anemia?

Answer 49

inadequate levels of VB12

Question 50

Why might elite athletes abuse EPO?

Answer 50

helps w/ endurance, hard to detect, need more O for cellular respiration

Question 51

What is pulmonary embolism?

Answer 51

blood clot dislodges and reaches the lung

Question 52

What blood type can successfully be given to a person with type AB blood?

Answer 52

all

Question 53

Compare polycythemia with leukocytosis

Answer 53

polycythemia increased RBC and leukocytosis is increased WBC